A contractor is requesting to use pea gravel 3000psi concrete underneath the tilt panels instead of the 7000psi non-shrink grout we specify (panel to foundation bearing connection). Can anyone think of any reason why this would be unacceptable? I'm assuming they would dry pack it
The only...
For the slender wall method (Chapter 14.8 in ACI 318-08) the modulus of rupture is listed as 7.5*lambda*sqrt(f'c).
For structurally plain concrete (Chapter 22 of the same code), it is given as 5 * lambda * sqrt(f'c).
Why are these values different? Why is the modulus stronger for the slender...
I know this has been discussed fairly often in this forum, but I am looking for everyone 2 cents on epoxy anchors. I have a situation where the contractor has poured a footing wrong so I am trying to extend the footing back to contract dimensions. I am looking pour a new strip and to dowel and...
I have a problem similar to the question in thread507-232128 and am looking for some advice.
I am trying to design an embed plate for 98k load and am having trouble figure out how to size the plate for bending. The 98k load comes from a beam which is attached by an all welded double angle...
I have a question! I was looking at the design of a masonry lintel in a masonry wall. I tried two different ways and ran into an issue.
1.) I applied loads to the beam (used arching action, effective span) to determine the maximum shear and moment. I then looked at the TEK 17-1B " Allowable...
What do you guys assume for the shear modulus of concrete?
I am looking at rigidity analysis in a shear wall. I am following guidance out of masonry textbook to determine the deflection of each wall and thus its relative rigidity and thus how much shear force it is likely to take.
In order to...
Hey guys!
Is there a minimum shear reinforcement requirement for a masonry wall?
I am building a masonry building for a WWTP and for flexure, I have designed it to have no7 @ 34" oc. Now I am looking at the shear walls for the structure. If the CMU has enough strength to resist the shear...
